5019021 has 36 divisors (see below), whose sum is σ = 8892000. Its totient is φ = 2712528.

The previous prime is 5019017. The next prime is 5019023. The reversal of 5019021 is 1209105.

It is not a de Polignac number, because 5019021 - 2² = 5019017 is a prime.

It is an Ulam number.

5019021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5018985 and 5019003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5019023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8080 + ... + 8678.

It is an arithmetic number, because the mean of its divisors is an integer number (247000).

Almost surely, 2^5019021 is an apocalyptic number.

It is an amenable number.

5019021 is a deficient number, since it is larger than the sum of its proper divisors (3872979).

5019021 is a wasteful number, since it uses less digits than its factorization.

5019021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 5019021 is about 2240.3171650461. The cubic root of 5019021 is about 171.2141566342.

It can be divided in two parts, 501 and 9021, that multiplied together give a triangular number (4519521 = T₃₀₀₆).

The spelling of 5019021 in words is "five million, nineteen thousand, twenty-one".